mjj29, on 2011-August-01, 16:10, said:
The TD will then fine you a well-deserved DP for wasting their time and his.
Yes, it is not good to claim in this way usually, though there are circumstances: the last time I did this everyone at the table knew I had already blown two tricks and was very annoyed with myself. Everyone except me thought it hilarious.
There are too many posts here assuming things not in evidence. If you claim without stating a line then either
- there is absolutely no need to state a line and everyone knows it, or
- it is a poor claim
Assuming one or the other without knowing the situation gets you nowhere.
Similarly, claiming without showing your cards can be
- perfectly legitimate: everyone knows your hand, or
- done to gain psychological points, which is illegal [sadly, I have played with a partner who did this], or
- a one-off event in a special situation, in which case we need to know the situation, or
- cheating: trying to get away with a bad claim
Again, without knowing the situation we do not know which.